Function BsonValueAsBool

pg_documentdb_core/src/query/bson_compare.c:709–752

* Converts a bson value to bool * It returns true for any Numeric value not 0 and false for any 0. * For non Numeric, it returns false for EOD, Undefined or NULL and true for any other value. */

 * For non Numeric, it returns false for EOD, Undefined or NULL and true for any other value.
 */
bool
BsonValueAsBool(const bson_value_t *value)
{
	switch (value->value_type)
	{
		case BSON_TYPE_BOOL:
		{
			return value->value.v_bool;
		}

		case BSON_TYPE_DOUBLE:
		{
			return value->value.v_double != 0.0;
		}

		case BSON_TYPE_INT32:
		{
			return value->value.v_int32 != 0;
		}

		case BSON_TYPE_INT64:
		{
			return value->value.v_int64 != 0;
		}

		case BSON_TYPE_DECIMAL128:
		{
			return !IsDecimal128Zero(value);
		}

		case BSON_TYPE_NULL:
		case BSON_TYPE_EOD:
		case BSON_TYPE_UNDEFINED:
		{
			return false;
		}

		default:
		{
			/* Any other value evaluates to true. */
			return true;
		}
	}
}


/* Given a bson value it tries to get its date time representation in milliseconds. */